lol, is that the designer? Looks handsome and rich, so much of snake oil and cash

Yes, exactly, it's the mood determine everything, and money haha, I think AB amp even not much different from Class D amp, just people mind is fishy

hmm, I guess no matter how good this hybrid amp is, it still back to the recording source audio to decide

More money on better mastering music, less money on over hype technology on gears...

anyone know where to buy rubber surround for diamond 9.1.. my speaker torn already.. 

wow, how you manage to do that?

I have experience the same problem. I purchased 6 pairs Wharfedale Diamond 9.1 since 2006 until 2010. The last unit I bought in 2010 is a bit different in colour and has no magnetic shield around the driver. This last unit got tear like yours.

I bought new rubber ring from ebay, and cut the whole things to replace with new one. Here is the link: -->Ebay (Rubber ring fits WD9.1)

Use the glue (white colour) sold at stationery shop.

Added :
When you get the new ring, and want to cut the old ring, do not attempt to tear off the old ring from kevlar cone. It will damage the cone. It wont work. Just cut the suspension area, leaving the remaining ring intact with kevlar. Then just glue the new ring on top of the remaining one. (What language  )

I did remove the old rubber using knife, but have to leave the internal part which already intact with kevlar cone.
Removing the old rubber from kevlar cone is impossible without damage, because kevlar cone is very flexible & fragile.
I think is safer to leave the remaining internal ring part and add the new ring just onto it.

There will be double layer of internal ring around the kevlar cone.